Mercurial > hg
annotate tests/test-cbor.py @ 40413:1ddd202c47d9
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Differential Revision: https://phab.mercurial-scm.org/D5077
author | rdamazio@google.com |
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date | Sat, 13 Oct 2018 05:43:39 -0700 |
parents | b638219a23c3 |
children | a9905045b992 |
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1 from __future__ import absolute_import |
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2 |
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3 import unittest |
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4 |
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5 from mercurial.thirdparty import ( |
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6 cbor, |
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7 ) |
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8 from mercurial.utils import ( |
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9 cborutil, |
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10 ) |
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11 |
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12 class TestCase(unittest.TestCase): |
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13 if not getattr(unittest.TestCase, 'assertRaisesRegex', False): |
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14 # Python 3.7 deprecates the regex*p* version, but 2.7 lacks |
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15 # the regex version. |
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16 assertRaisesRegex = (# camelcase-required |
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17 unittest.TestCase.assertRaisesRegexp) |
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18 |
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19 def loadit(it): |
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20 return cbor.loads(b''.join(it)) |
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21 |
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22 class BytestringTests(TestCase): |
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23 def testsimple(self): |
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24 self.assertEqual( |
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25 list(cborutil.streamencode(b'foobar')), |
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26 [b'\x46', b'foobar']) |
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27 |
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28 self.assertEqual( |
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29 loadit(cborutil.streamencode(b'foobar')), |
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30 b'foobar') |
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31 |
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32 self.assertEqual(cborutil.decodeall(b'\x46foobar'), |
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33 [b'foobar']) |
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34 |
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35 self.assertEqual(cborutil.decodeall(b'\x46foobar\x45fizbi'), |
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36 [b'foobar', b'fizbi']) |
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37 |
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38 def testlong(self): |
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39 source = b'x' * 1048576 |
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40 |
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41 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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42 |
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43 encoded = b''.join(cborutil.streamencode(source)) |
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44 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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45 |
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46 def testfromiter(self): |
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47 # This is the example from RFC 7049 Section 2.2.2. |
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48 source = [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99'] |
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49 |
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50 self.assertEqual( |
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51 list(cborutil.streamencodebytestringfromiter(source)), |
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52 [ |
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53 b'\x5f', |
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54 b'\x44', |
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55 b'\xaa\xbb\xcc\xdd', |
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56 b'\x43', |
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57 b'\xee\xff\x99', |
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58 b'\xff', |
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59 ]) |
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60 |
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61 self.assertEqual( |
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62 loadit(cborutil.streamencodebytestringfromiter(source)), |
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63 b''.join(source)) |
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64 |
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65 self.assertEqual(cborutil.decodeall(b'\x5f\x44\xaa\xbb\xcc\xdd' |
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66 b'\x43\xee\xff\x99\xff'), |
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67 [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99', b'']) |
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68 |
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69 for i, chunk in enumerate( |
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70 cborutil.decodeall(b'\x5f\x44\xaa\xbb\xcc\xdd' |
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71 b'\x43\xee\xff\x99\xff')): |
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72 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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73 |
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74 if i == 0: |
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75 self.assertTrue(chunk.isfirst) |
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76 else: |
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77 self.assertFalse(chunk.isfirst) |
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78 |
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79 if i == 2: |
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80 self.assertTrue(chunk.islast) |
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81 else: |
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82 self.assertFalse(chunk.islast) |
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83 |
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84 def testfromiterlarge(self): |
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85 source = [b'a' * 16, b'b' * 128, b'c' * 1024, b'd' * 1048576] |
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86 |
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87 self.assertEqual( |
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88 loadit(cborutil.streamencodebytestringfromiter(source)), |
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89 b''.join(source)) |
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90 |
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91 def testindefinite(self): |
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92 source = b'\x00\x01\x02\x03' + b'\xff' * 16384 |
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93 |
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94 it = cborutil.streamencodeindefinitebytestring(source, chunksize=2) |
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95 |
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96 self.assertEqual(next(it), b'\x5f') |
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97 self.assertEqual(next(it), b'\x42') |
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98 self.assertEqual(next(it), b'\x00\x01') |
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99 self.assertEqual(next(it), b'\x42') |
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100 self.assertEqual(next(it), b'\x02\x03') |
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101 self.assertEqual(next(it), b'\x42') |
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102 self.assertEqual(next(it), b'\xff\xff') |
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103 |
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104 dest = b''.join(cborutil.streamencodeindefinitebytestring( |
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105 source, chunksize=42)) |
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106 self.assertEqual(cbor.loads(dest), source) |
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107 |
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108 self.assertEqual(b''.join(cborutil.decodeall(dest)), source) |
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109 |
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110 for chunk in cborutil.decodeall(dest): |
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111 self.assertIsInstance(chunk, cborutil.bytestringchunk) |
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112 self.assertIn(len(chunk), (0, 8, 42)) |
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113 |
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114 encoded = b'\x5f\xff' |
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115 b = cborutil.decodeall(encoded) |
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116 self.assertEqual(b, [b'']) |
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117 self.assertTrue(b[0].isfirst) |
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118 self.assertTrue(b[0].islast) |
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119 |
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120 def testdecodevariouslengths(self): |
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121 for i in (0, 1, 22, 23, 24, 25, 254, 255, 256, 65534, 65535, 65536): |
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122 source = b'x' * i |
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123 encoded = b''.join(cborutil.streamencode(source)) |
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124 |
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125 if len(source) < 24: |
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126 hlen = 1 |
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127 elif len(source) < 256: |
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128 hlen = 2 |
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129 elif len(source) < 65536: |
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130 hlen = 3 |
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131 elif len(source) < 1048576: |
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132 hlen = 5 |
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133 |
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134 self.assertEqual(cborutil.decodeitem(encoded), |
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135 (True, source, hlen + len(source), |
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136 cborutil.SPECIAL_NONE)) |
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137 |
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138 def testpartialdecode(self): |
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139 encoded = b''.join(cborutil.streamencode(b'foobar')) |
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140 |
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141 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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142 (False, None, -6, cborutil.SPECIAL_NONE)) |
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143 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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144 (False, None, -5, cborutil.SPECIAL_NONE)) |
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145 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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146 (False, None, -4, cborutil.SPECIAL_NONE)) |
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147 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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148 (False, None, -3, cborutil.SPECIAL_NONE)) |
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149 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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150 (False, None, -2, cborutil.SPECIAL_NONE)) |
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151 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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152 (False, None, -1, cborutil.SPECIAL_NONE)) |
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153 self.assertEqual(cborutil.decodeitem(encoded[0:7]), |
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154 (True, b'foobar', 7, cborutil.SPECIAL_NONE)) |
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155 |
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156 def testpartialdecodevariouslengths(self): |
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157 lens = [ |
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158 2, |
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159 3, |
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160 10, |
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161 23, |
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162 24, |
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163 25, |
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164 31, |
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165 100, |
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166 254, |
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167 255, |
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168 256, |
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169 257, |
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170 16384, |
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171 65534, |
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172 65535, |
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173 65536, |
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174 65537, |
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175 131071, |
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176 131072, |
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177 131073, |
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178 1048575, |
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179 1048576, |
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180 1048577, |
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181 ] |
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182 |
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183 for size in lens: |
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184 if size < 24: |
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185 hlen = 1 |
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186 elif size < 2**8: |
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187 hlen = 2 |
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188 elif size < 2**16: |
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189 hlen = 3 |
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190 elif size < 2**32: |
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191 hlen = 5 |
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192 else: |
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193 assert False |
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194 |
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195 source = b'x' * size |
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196 encoded = b''.join(cborutil.streamencode(source)) |
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197 |
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198 res = cborutil.decodeitem(encoded[0:1]) |
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199 |
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200 if hlen > 1: |
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201 self.assertEqual(res, (False, None, -(hlen - 1), |
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202 cborutil.SPECIAL_NONE)) |
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203 else: |
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204 self.assertEqual(res, (False, None, -(size + hlen - 1), |
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205 cborutil.SPECIAL_NONE)) |
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206 |
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207 # Decoding partial header reports remaining header size. |
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208 for i in range(hlen - 1): |
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209 self.assertEqual(cborutil.decodeitem(encoded[0:i + 1]), |
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210 (False, None, -(hlen - i - 1), |
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211 cborutil.SPECIAL_NONE)) |
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212 |
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213 # Decoding complete header reports item size. |
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214 self.assertEqual(cborutil.decodeitem(encoded[0:hlen]), |
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215 (False, None, -size, cborutil.SPECIAL_NONE)) |
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216 |
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217 # Decoding single byte after header reports item size - 1 |
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218 self.assertEqual(cborutil.decodeitem(encoded[0:hlen + 1]), |
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219 (False, None, -(size - 1), cborutil.SPECIAL_NONE)) |
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220 |
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221 # Decoding all but the last byte reports -1 needed. |
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222 self.assertEqual(cborutil.decodeitem(encoded[0:hlen + size - 1]), |
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223 (False, None, -1, cborutil.SPECIAL_NONE)) |
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224 |
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225 # Decoding last byte retrieves value. |
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226 self.assertEqual(cborutil.decodeitem(encoded[0:hlen + size]), |
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227 (True, source, hlen + size, cborutil.SPECIAL_NONE)) |
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228 |
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229 def testindefinitepartialdecode(self): |
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230 encoded = b''.join(cborutil.streamencodebytestringfromiter( |
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231 [b'foobar', b'biz'])) |
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232 |
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233 # First item should be begin of bytestring special. |
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234 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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235 (True, None, 1, |
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236 cborutil.SPECIAL_START_INDEFINITE_BYTESTRING)) |
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237 |
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238 # Second item should be the first chunk. But only available when |
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239 # we give it 7 bytes (1 byte header + 6 byte chunk). |
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240 self.assertEqual(cborutil.decodeitem(encoded[1:2]), |
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241 (False, None, -6, cborutil.SPECIAL_NONE)) |
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242 self.assertEqual(cborutil.decodeitem(encoded[1:3]), |
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243 (False, None, -5, cborutil.SPECIAL_NONE)) |
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244 self.assertEqual(cborutil.decodeitem(encoded[1:4]), |
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245 (False, None, -4, cborutil.SPECIAL_NONE)) |
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246 self.assertEqual(cborutil.decodeitem(encoded[1:5]), |
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247 (False, None, -3, cborutil.SPECIAL_NONE)) |
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248 self.assertEqual(cborutil.decodeitem(encoded[1:6]), |
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249 (False, None, -2, cborutil.SPECIAL_NONE)) |
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250 self.assertEqual(cborutil.decodeitem(encoded[1:7]), |
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251 (False, None, -1, cborutil.SPECIAL_NONE)) |
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252 |
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253 self.assertEqual(cborutil.decodeitem(encoded[1:8]), |
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254 (True, b'foobar', 7, cborutil.SPECIAL_NONE)) |
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255 |
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256 # Third item should be second chunk. But only available when |
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257 # we give it 4 bytes (1 byte header + 3 byte chunk). |
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258 self.assertEqual(cborutil.decodeitem(encoded[8:9]), |
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259 (False, None, -3, cborutil.SPECIAL_NONE)) |
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260 self.assertEqual(cborutil.decodeitem(encoded[8:10]), |
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261 (False, None, -2, cborutil.SPECIAL_NONE)) |
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262 self.assertEqual(cborutil.decodeitem(encoded[8:11]), |
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263 (False, None, -1, cborutil.SPECIAL_NONE)) |
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264 |
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265 self.assertEqual(cborutil.decodeitem(encoded[8:12]), |
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266 (True, b'biz', 4, cborutil.SPECIAL_NONE)) |
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267 |
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268 # Fourth item should be end of indefinite stream marker. |
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269 self.assertEqual(cborutil.decodeitem(encoded[12:13]), |
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270 (True, None, 1, cborutil.SPECIAL_INDEFINITE_BREAK)) |
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271 |
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272 # Now test the behavior when going through the decoder. |
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273 |
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274 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:1]), |
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275 (False, 1, 0)) |
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276 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:2]), |
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277 (False, 1, 6)) |
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278 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:3]), |
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279 (False, 1, 5)) |
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280 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:4]), |
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281 (False, 1, 4)) |
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282 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:5]), |
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283 (False, 1, 3)) |
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284 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:6]), |
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285 (False, 1, 2)) |
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286 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:7]), |
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287 (False, 1, 1)) |
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288 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:8]), |
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289 (True, 8, 0)) |
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290 |
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291 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:9]), |
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292 (True, 8, 3)) |
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293 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:10]), |
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294 (True, 8, 2)) |
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295 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:11]), |
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296 (True, 8, 1)) |
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297 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:12]), |
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298 (True, 12, 0)) |
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299 |
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300 self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:13]), |
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301 (True, 13, 0)) |
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302 |
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303 decoder = cborutil.sansiodecoder() |
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304 decoder.decode(encoded[0:8]) |
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305 values = decoder.getavailable() |
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306 self.assertEqual(values, [b'foobar']) |
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307 self.assertTrue(values[0].isfirst) |
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308 self.assertFalse(values[0].islast) |
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309 |
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310 self.assertEqual(decoder.decode(encoded[8:12]), |
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311 (True, 4, 0)) |
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312 values = decoder.getavailable() |
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313 self.assertEqual(values, [b'biz']) |
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314 self.assertFalse(values[0].isfirst) |
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315 self.assertFalse(values[0].islast) |
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316 |
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317 self.assertEqual(decoder.decode(encoded[12:]), |
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318 (True, 1, 0)) |
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319 values = decoder.getavailable() |
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320 self.assertEqual(values, [b'']) |
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321 self.assertFalse(values[0].isfirst) |
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322 self.assertTrue(values[0].islast) |
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323 |
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324 class StringTests(TestCase): |
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325 def testdecodeforbidden(self): |
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326 encoded = b'\x63foo' |
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327 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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328 'string major type not supported'): |
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329 cborutil.decodeall(encoded) |
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330 |
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331 class IntTests(TestCase): |
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332 def testsmall(self): |
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333 self.assertEqual(list(cborutil.streamencode(0)), [b'\x00']) |
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334 self.assertEqual(cborutil.decodeall(b'\x00'), [0]) |
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335 |
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336 self.assertEqual(list(cborutil.streamencode(1)), [b'\x01']) |
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337 self.assertEqual(cborutil.decodeall(b'\x01'), [1]) |
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338 |
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339 self.assertEqual(list(cborutil.streamencode(2)), [b'\x02']) |
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340 self.assertEqual(cborutil.decodeall(b'\x02'), [2]) |
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341 |
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342 self.assertEqual(list(cborutil.streamencode(3)), [b'\x03']) |
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343 self.assertEqual(cborutil.decodeall(b'\x03'), [3]) |
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344 |
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345 self.assertEqual(list(cborutil.streamencode(4)), [b'\x04']) |
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346 self.assertEqual(cborutil.decodeall(b'\x04'), [4]) |
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347 |
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348 # Multiple value decode works. |
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349 self.assertEqual(cborutil.decodeall(b'\x00\x01\x02\x03\x04'), |
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350 [0, 1, 2, 3, 4]) |
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351 |
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352 def testnegativesmall(self): |
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353 self.assertEqual(list(cborutil.streamencode(-1)), [b'\x20']) |
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354 self.assertEqual(cborutil.decodeall(b'\x20'), [-1]) |
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355 |
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356 self.assertEqual(list(cborutil.streamencode(-2)), [b'\x21']) |
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357 self.assertEqual(cborutil.decodeall(b'\x21'), [-2]) |
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358 |
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359 self.assertEqual(list(cborutil.streamencode(-3)), [b'\x22']) |
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360 self.assertEqual(cborutil.decodeall(b'\x22'), [-3]) |
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361 |
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362 self.assertEqual(list(cborutil.streamencode(-4)), [b'\x23']) |
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363 self.assertEqual(cborutil.decodeall(b'\x23'), [-4]) |
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364 |
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365 self.assertEqual(list(cborutil.streamencode(-5)), [b'\x24']) |
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366 self.assertEqual(cborutil.decodeall(b'\x24'), [-5]) |
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367 |
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368 # Multiple value decode works. |
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369 self.assertEqual(cborutil.decodeall(b'\x20\x21\x22\x23\x24'), |
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370 [-1, -2, -3, -4, -5]) |
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371 |
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372 def testrange(self): |
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373 for i in range(-70000, 70000, 10): |
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374 encoded = b''.join(cborutil.streamencode(i)) |
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375 |
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376 self.assertEqual(encoded, cbor.dumps(i)) |
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377 self.assertEqual(cborutil.decodeall(encoded), [i]) |
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378 |
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379 def testdecodepartialubyte(self): |
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380 encoded = b''.join(cborutil.streamencode(250)) |
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381 |
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382 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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383 (False, None, -1, cborutil.SPECIAL_NONE)) |
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384 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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385 (True, 250, 2, cborutil.SPECIAL_NONE)) |
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386 |
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387 def testdecodepartialbyte(self): |
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388 encoded = b''.join(cborutil.streamencode(-42)) |
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389 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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390 (False, None, -1, cborutil.SPECIAL_NONE)) |
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391 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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392 (True, -42, 2, cborutil.SPECIAL_NONE)) |
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393 |
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394 def testdecodepartialushort(self): |
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395 encoded = b''.join(cborutil.streamencode(2**15)) |
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396 |
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397 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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398 (False, None, -2, cborutil.SPECIAL_NONE)) |
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399 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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400 (False, None, -1, cborutil.SPECIAL_NONE)) |
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401 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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402 (True, 2**15, 3, cborutil.SPECIAL_NONE)) |
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403 |
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404 def testdecodepartialshort(self): |
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405 encoded = b''.join(cborutil.streamencode(-1024)) |
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406 |
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407 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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408 (False, None, -2, cborutil.SPECIAL_NONE)) |
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409 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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410 (False, None, -1, cborutil.SPECIAL_NONE)) |
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411 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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412 (True, -1024, 3, cborutil.SPECIAL_NONE)) |
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413 |
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414 def testdecodepartialulong(self): |
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415 encoded = b''.join(cborutil.streamencode(2**28)) |
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416 |
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417 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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418 (False, None, -4, cborutil.SPECIAL_NONE)) |
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419 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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420 (False, None, -3, cborutil.SPECIAL_NONE)) |
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421 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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422 (False, None, -2, cborutil.SPECIAL_NONE)) |
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423 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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424 (False, None, -1, cborutil.SPECIAL_NONE)) |
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425 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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426 (True, 2**28, 5, cborutil.SPECIAL_NONE)) |
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427 |
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428 def testdecodepartiallong(self): |
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429 encoded = b''.join(cborutil.streamencode(-1048580)) |
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430 |
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431 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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432 (False, None, -4, cborutil.SPECIAL_NONE)) |
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433 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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434 (False, None, -3, cborutil.SPECIAL_NONE)) |
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435 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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436 (False, None, -2, cborutil.SPECIAL_NONE)) |
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437 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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438 (False, None, -1, cborutil.SPECIAL_NONE)) |
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439 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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440 (True, -1048580, 5, cborutil.SPECIAL_NONE)) |
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441 |
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442 def testdecodepartialulonglong(self): |
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443 encoded = b''.join(cborutil.streamencode(2**32)) |
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444 |
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445 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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446 (False, None, -8, cborutil.SPECIAL_NONE)) |
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447 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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448 (False, None, -7, cborutil.SPECIAL_NONE)) |
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449 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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450 (False, None, -6, cborutil.SPECIAL_NONE)) |
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451 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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452 (False, None, -5, cborutil.SPECIAL_NONE)) |
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453 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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454 (False, None, -4, cborutil.SPECIAL_NONE)) |
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455 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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456 (False, None, -3, cborutil.SPECIAL_NONE)) |
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457 self.assertEqual(cborutil.decodeitem(encoded[0:7]), |
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458 (False, None, -2, cborutil.SPECIAL_NONE)) |
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459 self.assertEqual(cborutil.decodeitem(encoded[0:8]), |
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460 (False, None, -1, cborutil.SPECIAL_NONE)) |
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461 self.assertEqual(cborutil.decodeitem(encoded[0:9]), |
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462 (True, 2**32, 9, cborutil.SPECIAL_NONE)) |
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463 |
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464 with self.assertRaisesRegex( |
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465 cborutil.CBORDecodeError, 'input data not fully consumed'): |
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466 cborutil.decodeall(encoded[0:1]) |
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467 |
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468 with self.assertRaisesRegex( |
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469 cborutil.CBORDecodeError, 'input data not fully consumed'): |
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470 cborutil.decodeall(encoded[0:2]) |
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471 |
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472 def testdecodepartiallonglong(self): |
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473 encoded = b''.join(cborutil.streamencode(-7000000000)) |
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474 |
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475 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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476 (False, None, -8, cborutil.SPECIAL_NONE)) |
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477 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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478 (False, None, -7, cborutil.SPECIAL_NONE)) |
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479 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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480 (False, None, -6, cborutil.SPECIAL_NONE)) |
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481 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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482 (False, None, -5, cborutil.SPECIAL_NONE)) |
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483 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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484 (False, None, -4, cborutil.SPECIAL_NONE)) |
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485 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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486 (False, None, -3, cborutil.SPECIAL_NONE)) |
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487 self.assertEqual(cborutil.decodeitem(encoded[0:7]), |
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488 (False, None, -2, cborutil.SPECIAL_NONE)) |
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489 self.assertEqual(cborutil.decodeitem(encoded[0:8]), |
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490 (False, None, -1, cborutil.SPECIAL_NONE)) |
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491 self.assertEqual(cborutil.decodeitem(encoded[0:9]), |
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492 (True, -7000000000, 9, cborutil.SPECIAL_NONE)) |
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493 |
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494 class ArrayTests(TestCase): |
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495 def testempty(self): |
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496 self.assertEqual(list(cborutil.streamencode([])), [b'\x80']) |
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497 self.assertEqual(loadit(cborutil.streamencode([])), []) |
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498 |
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499 self.assertEqual(cborutil.decodeall(b'\x80'), [[]]) |
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500 |
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501 def testbasic(self): |
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502 source = [b'foo', b'bar', 1, -10] |
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503 |
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504 chunks = [ |
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505 b'\x84', b'\x43', b'foo', b'\x43', b'bar', b'\x01', b'\x29'] |
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506 |
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507 self.assertEqual(list(cborutil.streamencode(source)), chunks) |
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508 |
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509 self.assertEqual(cborutil.decodeall(b''.join(chunks)), [source]) |
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510 |
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511 def testemptyfromiter(self): |
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512 self.assertEqual(b''.join(cborutil.streamencodearrayfromiter([])), |
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513 b'\x9f\xff') |
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514 |
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515 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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516 'indefinite length uint not allowed'): |
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517 cborutil.decodeall(b'\x9f\xff') |
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518 |
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519 def testfromiter1(self): |
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520 source = [b'foo'] |
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521 |
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522 self.assertEqual(list(cborutil.streamencodearrayfromiter(source)), [ |
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523 b'\x9f', |
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524 b'\x43', b'foo', |
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525 b'\xff', |
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526 ]) |
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527 |
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528 dest = b''.join(cborutil.streamencodearrayfromiter(source)) |
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529 self.assertEqual(cbor.loads(dest), source) |
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530 |
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531 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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532 'indefinite length uint not allowed'): |
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533 cborutil.decodeall(dest) |
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534 |
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535 def testtuple(self): |
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536 source = (b'foo', None, 42) |
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537 encoded = b''.join(cborutil.streamencode(source)) |
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538 |
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539 self.assertEqual(cbor.loads(encoded), list(source)) |
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540 |
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541 self.assertEqual(cborutil.decodeall(encoded), [list(source)]) |
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542 |
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543 def testpartialdecode(self): |
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544 source = list(range(4)) |
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545 encoded = b''.join(cborutil.streamencode(source)) |
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546 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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547 (True, 4, 1, cborutil.SPECIAL_START_ARRAY)) |
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548 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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549 (True, 4, 1, cborutil.SPECIAL_START_ARRAY)) |
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550 |
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551 source = list(range(23)) |
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552 encoded = b''.join(cborutil.streamencode(source)) |
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553 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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554 (True, 23, 1, cborutil.SPECIAL_START_ARRAY)) |
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555 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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556 (True, 23, 1, cborutil.SPECIAL_START_ARRAY)) |
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557 |
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558 source = list(range(24)) |
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559 encoded = b''.join(cborutil.streamencode(source)) |
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560 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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561 (False, None, -1, cborutil.SPECIAL_NONE)) |
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562 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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563 (True, 24, 2, cborutil.SPECIAL_START_ARRAY)) |
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564 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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565 (True, 24, 2, cborutil.SPECIAL_START_ARRAY)) |
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566 |
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567 source = list(range(256)) |
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568 encoded = b''.join(cborutil.streamencode(source)) |
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569 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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570 (False, None, -2, cborutil.SPECIAL_NONE)) |
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571 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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572 (False, None, -1, cborutil.SPECIAL_NONE)) |
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573 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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574 (True, 256, 3, cborutil.SPECIAL_START_ARRAY)) |
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575 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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576 (True, 256, 3, cborutil.SPECIAL_START_ARRAY)) |
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577 |
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578 def testnested(self): |
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579 source = [[], [], [[], [], []]] |
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580 encoded = b''.join(cborutil.streamencode(source)) |
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581 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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582 |
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583 source = [True, None, [True, 0, 2], [None], [], [[[]], -87]] |
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584 encoded = b''.join(cborutil.streamencode(source)) |
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585 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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586 |
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587 # A set within an array. |
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588 source = [None, {b'foo', b'bar', None, False}, set()] |
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589 encoded = b''.join(cborutil.streamencode(source)) |
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590 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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591 |
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592 # A map within an array. |
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593 source = [None, {}, {b'foo': b'bar', True: False}, [{}]] |
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594 encoded = b''.join(cborutil.streamencode(source)) |
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595 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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596 |
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597 def testindefinitebytestringvalues(self): |
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598 # Single value array whose value is an empty indefinite bytestring. |
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599 encoded = b'\x81\x5f\x40\xff' |
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600 |
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601 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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602 'indefinite length bytestrings not ' |
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603 'allowed as array values'): |
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604 cborutil.decodeall(encoded) |
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605 |
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606 class SetTests(TestCase): |
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607 def testempty(self): |
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608 self.assertEqual(list(cborutil.streamencode(set())), [ |
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609 b'\xd9\x01\x02', |
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610 b'\x80', |
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611 ]) |
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612 |
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613 self.assertEqual(cborutil.decodeall(b'\xd9\x01\x02\x80'), [set()]) |
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614 |
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615 def testset(self): |
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616 source = {b'foo', None, 42} |
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617 encoded = b''.join(cborutil.streamencode(source)) |
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618 |
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619 self.assertEqual(cbor.loads(encoded), source) |
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620 |
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621 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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622 |
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623 def testinvalidtag(self): |
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624 # Must use array to encode sets. |
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625 encoded = b'\xd9\x01\x02\xa0' |
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626 |
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627 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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628 'expected array after finite set ' |
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629 'semantic tag'): |
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630 cborutil.decodeall(encoded) |
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631 |
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632 def testpartialdecode(self): |
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633 # Semantic tag item will be 3 bytes. Set header will be variable |
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634 # depending on length. |
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635 encoded = b''.join(cborutil.streamencode({i for i in range(23)})) |
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636 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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637 (False, None, -2, cborutil.SPECIAL_NONE)) |
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638 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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639 (False, None, -1, cborutil.SPECIAL_NONE)) |
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640 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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641 (False, None, -1, cborutil.SPECIAL_NONE)) |
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642 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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643 (True, 23, 4, cborutil.SPECIAL_START_SET)) |
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644 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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645 (True, 23, 4, cborutil.SPECIAL_START_SET)) |
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646 |
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647 encoded = b''.join(cborutil.streamencode({i for i in range(24)})) |
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648 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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649 (False, None, -2, cborutil.SPECIAL_NONE)) |
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650 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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651 (False, None, -1, cborutil.SPECIAL_NONE)) |
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652 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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653 (False, None, -1, cborutil.SPECIAL_NONE)) |
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654 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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655 (False, None, -1, cborutil.SPECIAL_NONE)) |
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656 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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657 (True, 24, 5, cborutil.SPECIAL_START_SET)) |
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658 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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659 (True, 24, 5, cborutil.SPECIAL_START_SET)) |
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660 |
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661 encoded = b''.join(cborutil.streamencode({i for i in range(256)})) |
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662 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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663 (False, None, -2, cborutil.SPECIAL_NONE)) |
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664 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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665 (False, None, -1, cborutil.SPECIAL_NONE)) |
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666 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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667 (False, None, -1, cborutil.SPECIAL_NONE)) |
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668 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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669 (False, None, -2, cborutil.SPECIAL_NONE)) |
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670 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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671 (False, None, -1, cborutil.SPECIAL_NONE)) |
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672 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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673 (True, 256, 6, cborutil.SPECIAL_START_SET)) |
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674 |
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675 def testinvalidvalue(self): |
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676 encoded = b''.join([ |
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677 b'\xd9\x01\x02', # semantic tag |
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678 b'\x81', # array of size 1 |
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679 b'\x5f\x43foo\xff', # indefinite length bytestring "foo" |
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680 ]) |
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681 |
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682 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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683 'indefinite length bytestrings not ' |
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684 'allowed as set values'): |
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685 cborutil.decodeall(encoded) |
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686 |
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687 encoded = b''.join([ |
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688 b'\xd9\x01\x02', |
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689 b'\x81', |
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690 b'\x80', # empty array |
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691 ]) |
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692 |
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693 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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694 'collections not allowed as set values'): |
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695 cborutil.decodeall(encoded) |
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696 |
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697 encoded = b''.join([ |
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698 b'\xd9\x01\x02', |
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699 b'\x81', |
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700 b'\xa0', # empty map |
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701 ]) |
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702 |
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703 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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704 'collections not allowed as set values'): |
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705 cborutil.decodeall(encoded) |
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706 |
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707 encoded = b''.join([ |
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708 b'\xd9\x01\x02', |
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709 b'\x81', |
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710 b'\xd9\x01\x02\x81\x01', # set with integer 1 |
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711 ]) |
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|
712 |
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713 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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714 'collections not allowed as set values'): |
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715 cborutil.decodeall(encoded) |
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716 |
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717 class BoolTests(TestCase): |
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718 def testbasic(self): |
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719 self.assertEqual(list(cborutil.streamencode(True)), [b'\xf5']) |
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720 self.assertEqual(list(cborutil.streamencode(False)), [b'\xf4']) |
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721 |
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722 self.assertIs(loadit(cborutil.streamencode(True)), True) |
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723 self.assertIs(loadit(cborutil.streamencode(False)), False) |
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724 |
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725 self.assertEqual(cborutil.decodeall(b'\xf4'), [False]) |
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726 self.assertEqual(cborutil.decodeall(b'\xf5'), [True]) |
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727 |
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728 self.assertEqual(cborutil.decodeall(b'\xf4\xf5\xf5\xf4'), |
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729 [False, True, True, False]) |
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730 |
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|
731 class NoneTests(TestCase): |
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732 def testbasic(self): |
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733 self.assertEqual(list(cborutil.streamencode(None)), [b'\xf6']) |
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734 |
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735 self.assertIs(loadit(cborutil.streamencode(None)), None) |
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736 |
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737 self.assertEqual(cborutil.decodeall(b'\xf6'), [None]) |
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738 self.assertEqual(cborutil.decodeall(b'\xf6\xf6'), [None, None]) |
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739 |
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740 class MapTests(TestCase): |
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741 def testempty(self): |
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742 self.assertEqual(list(cborutil.streamencode({})), [b'\xa0']) |
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743 self.assertEqual(loadit(cborutil.streamencode({})), {}) |
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744 |
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745 self.assertEqual(cborutil.decodeall(b'\xa0'), [{}]) |
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746 |
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747 def testemptyindefinite(self): |
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748 self.assertEqual(list(cborutil.streamencodemapfromiter([])), [ |
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749 b'\xbf', b'\xff']) |
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|
750 |
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751 self.assertEqual(loadit(cborutil.streamencodemapfromiter([])), {}) |
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752 |
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753 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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|
754 'indefinite length uint not allowed'): |
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|
755 cborutil.decodeall(b'\xbf\xff') |
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|
756 |
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757 def testone(self): |
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758 source = {b'foo': b'bar'} |
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759 self.assertEqual(list(cborutil.streamencode(source)), [ |
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760 b'\xa1', b'\x43', b'foo', b'\x43', b'bar']) |
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761 |
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762 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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763 |
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|
764 self.assertEqual(cborutil.decodeall(b'\xa1\x43foo\x43bar'), [source]) |
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|
765 |
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|
766 def testmultiple(self): |
65a23cc8e75b
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767 source = { |
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768 b'foo': b'bar', |
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|
769 b'baz': b'value1', |
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|
770 } |
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|
771 |
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772 self.assertEqual(loadit(cborutil.streamencode(source)), source) |
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|
773 |
65a23cc8e75b
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|
774 self.assertEqual( |
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|
775 loadit(cborutil.streamencodemapfromiter(source.items())), |
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|
776 source) |
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|
777 |
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|
778 encoded = b''.join(cborutil.streamencode(source)) |
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779 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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|
780 |
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781 def testcomplex(self): |
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782 source = { |
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|
783 b'key': 1, |
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|
784 2: -10, |
65a23cc8e75b
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diff
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|
785 } |
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parents:
diff
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|
786 |
65a23cc8e75b
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|
787 self.assertEqual(loadit(cborutil.streamencode(source)), |
65a23cc8e75b
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diff
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|
788 source) |
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|
789 |
65a23cc8e75b
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|
790 self.assertEqual( |
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791 loadit(cborutil.streamencodemapfromiter(source.items())), |
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792 source) |
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793 |
39411
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794 encoded = b''.join(cborutil.streamencode(source)) |
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795 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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796 |
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797 def testnested(self): |
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798 source = {b'key1': None, b'key2': {b'sub1': b'sub2'}, b'sub2': {}} |
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799 encoded = b''.join(cborutil.streamencode(source)) |
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800 |
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801 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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802 |
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803 source = { |
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804 b'key1': [], |
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805 b'key2': [None, False], |
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806 b'key3': {b'foo', b'bar'}, |
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807 b'key4': {}, |
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808 } |
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809 encoded = b''.join(cborutil.streamencode(source)) |
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810 self.assertEqual(cborutil.decodeall(encoded), [source]) |
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811 |
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812 def testillegalkey(self): |
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813 encoded = b''.join([ |
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814 # map header + len 1 |
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815 b'\xa1', |
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816 # indefinite length bytestring "foo" in key position |
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817 b'\x5f\x03foo\xff' |
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818 ]) |
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819 |
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820 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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821 'indefinite length bytestrings not ' |
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822 'allowed as map keys'): |
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823 cborutil.decodeall(encoded) |
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824 |
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825 encoded = b''.join([ |
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826 b'\xa1', |
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827 b'\x80', # empty array |
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828 b'\x43foo', |
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829 ]) |
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830 |
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831 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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832 'collections not supported as map keys'): |
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parents:
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833 cborutil.decodeall(encoded) |
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834 |
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835 def testillegalvalue(self): |
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836 encoded = b''.join([ |
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837 b'\xa1', # map headers |
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838 b'\x43foo', # key |
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839 b'\x5f\x03bar\xff', # indefinite length value |
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840 ]) |
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|
841 |
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842 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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843 'indefinite length bytestrings not ' |
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844 'allowed as map values'): |
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845 cborutil.decodeall(encoded) |
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846 |
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847 def testpartialdecode(self): |
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848 source = {b'key1': b'value1'} |
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849 encoded = b''.join(cborutil.streamencode(source)) |
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850 |
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851 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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852 (True, 1, 1, cborutil.SPECIAL_START_MAP)) |
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853 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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854 (True, 1, 1, cborutil.SPECIAL_START_MAP)) |
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855 |
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|
856 source = {b'key%d' % i: None for i in range(23)} |
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857 encoded = b''.join(cborutil.streamencode(source)) |
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858 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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859 (True, 23, 1, cborutil.SPECIAL_START_MAP)) |
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|
860 |
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861 source = {b'key%d' % i: None for i in range(24)} |
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862 encoded = b''.join(cborutil.streamencode(source)) |
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863 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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864 (False, None, -1, cborutil.SPECIAL_NONE)) |
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865 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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866 (True, 24, 2, cborutil.SPECIAL_START_MAP)) |
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867 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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868 (True, 24, 2, cborutil.SPECIAL_START_MAP)) |
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869 |
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870 source = {b'key%d' % i: None for i in range(256)} |
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871 encoded = b''.join(cborutil.streamencode(source)) |
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872 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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873 (False, None, -2, cborutil.SPECIAL_NONE)) |
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874 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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875 (False, None, -1, cborutil.SPECIAL_NONE)) |
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876 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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877 (True, 256, 3, cborutil.SPECIAL_START_MAP)) |
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878 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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879 (True, 256, 3, cborutil.SPECIAL_START_MAP)) |
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880 |
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881 source = {b'key%d' % i: None for i in range(65536)} |
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882 encoded = b''.join(cborutil.streamencode(source)) |
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883 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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884 (False, None, -4, cborutil.SPECIAL_NONE)) |
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885 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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886 (False, None, -3, cborutil.SPECIAL_NONE)) |
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887 self.assertEqual(cborutil.decodeitem(encoded[0:3]), |
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888 (False, None, -2, cborutil.SPECIAL_NONE)) |
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889 self.assertEqual(cborutil.decodeitem(encoded[0:4]), |
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890 (False, None, -1, cborutil.SPECIAL_NONE)) |
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891 self.assertEqual(cborutil.decodeitem(encoded[0:5]), |
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892 (True, 65536, 5, cborutil.SPECIAL_START_MAP)) |
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893 self.assertEqual(cborutil.decodeitem(encoded[0:6]), |
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894 (True, 65536, 5, cborutil.SPECIAL_START_MAP)) |
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895 |
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896 class SemanticTagTests(TestCase): |
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897 def testdecodeforbidden(self): |
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898 for i in range(500): |
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899 if i == cborutil.SEMANTIC_TAG_FINITE_SET: |
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900 continue |
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901 |
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902 tag = cborutil.encodelength(cborutil.MAJOR_TYPE_SEMANTIC, |
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903 i) |
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904 |
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|
905 encoded = tag + cborutil.encodelength(cborutil.MAJOR_TYPE_UINT, 42) |
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cborutil: implement sans I/O decoder
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|
906 |
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|
907 # Partial decode is incomplete. |
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908 if i < 24: |
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diff
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|
909 pass |
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|
910 elif i < 256: |
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|
911 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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|
912 (False, None, -1, cborutil.SPECIAL_NONE)) |
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|
913 elif i < 65536: |
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|
914 self.assertEqual(cborutil.decodeitem(encoded[0:1]), |
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|
915 (False, None, -2, cborutil.SPECIAL_NONE)) |
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|
916 self.assertEqual(cborutil.decodeitem(encoded[0:2]), |
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|
917 (False, None, -1, cborutil.SPECIAL_NONE)) |
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|
918 |
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|
919 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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|
920 'semantic tag \d+ not allowed'): |
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|
921 cborutil.decodeitem(encoded) |
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|
922 |
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|
923 class SpecialTypesTests(TestCase): |
aeb551a3bb8a
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|
924 def testforbiddentypes(self): |
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|
925 for i in range(256): |
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|
926 if i == cborutil.SUBTYPE_FALSE: |
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|
927 continue |
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|
928 elif i == cborutil.SUBTYPE_TRUE: |
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cborutil: implement sans I/O decoder
Gregory Szorc <gregory.szorc@gmail.com>
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|
929 continue |
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|
930 elif i == cborutil.SUBTYPE_NULL: |
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cborutil: implement sans I/O decoder
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|
931 continue |
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|
932 |
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|
933 encoded = cborutil.encodelength(cborutil.MAJOR_TYPE_SPECIAL, i) |
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|
934 |
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|
935 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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|
936 'special type \d+ not allowed'): |
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|
937 cborutil.decodeitem(encoded) |
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|
938 |
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diff
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|
939 class SansIODecoderTests(TestCase): |
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|
940 def testemptyinput(self): |
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parents:
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|
941 decoder = cborutil.sansiodecoder() |
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|
942 self.assertEqual(decoder.decode(b''), (False, 0, 0)) |
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|
943 |
39413
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|
944 class BufferingDecoderTests(TestCase): |
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|
945 def testsimple(self): |
babad5ebaf0a
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diff
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|
946 source = [ |
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diff
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|
947 b'foobar', |
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|
948 b'x' * 128, |
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diff
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|
949 {b'foo': b'bar'}, |
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diff
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|
950 True, |
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diff
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|
951 False, |
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diff
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|
952 None, |
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diff
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|
953 [None for i in range(128)], |
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diff
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|
954 ] |
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diff
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|
955 |
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diff
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|
956 encoded = b''.join(cborutil.streamencode(source)) |
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diff
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|
957 |
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|
958 for step in range(1, 32): |
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|
959 decoder = cborutil.bufferingdecoder() |
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|
960 start = 0 |
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diff
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|
961 |
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|
962 while start < len(encoded): |
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|
963 decoder.decode(encoded[start:start + step]) |
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|
964 start += step |
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diff
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|
965 |
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|
966 self.assertEqual(decoder.getavailable(), [source]) |
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|
967 |
40124
b638219a23c3
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diff
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|
968 def testbytearray(self): |
b638219a23c3
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|
969 source = b''.join(cborutil.streamencode(b'foobar')) |
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diff
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|
970 |
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diff
changeset
|
971 decoder = cborutil.bufferingdecoder() |
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diff
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|
972 decoder.decode(bytearray(source)) |
b638219a23c3
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diff
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|
973 |
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diff
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|
974 self.assertEqual(decoder.getavailable(), [b'foobar']) |
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|
975 |
39411
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|
976 class DecodeallTests(TestCase): |
aeb551a3bb8a
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|
977 def testemptyinput(self): |
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|
978 self.assertEqual(cborutil.decodeall(b''), []) |
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|
979 |
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|
980 def testpartialinput(self): |
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|
981 encoded = b''.join([ |
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|
982 b'\x82', # array of 2 elements |
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|
983 b'\x01', # integer 1 |
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changeset
|
984 ]) |
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changeset
|
985 |
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changeset
|
986 with self.assertRaisesRegex(cborutil.CBORDecodeError, |
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|
987 'input data not complete'): |
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|
988 cborutil.decodeall(encoded) |
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diff
changeset
|
989 |
37711
65a23cc8e75b
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parents:
diff
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|
990 if __name__ == '__main__': |
65a23cc8e75b
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parents:
diff
changeset
|
991 import silenttestrunner |
65a23cc8e75b
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diff
changeset
|
992 silenttestrunner.main(__name__) |